are surroundings with high levels of exposure to industrial chemicals. A)
Second-growth forests
B)
Point sources
C)
Old growth forests
D)
Rangelands
E)
Toxic environments

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?